PREPARATION OF ROAD DUST SUPPRESSANT WITH AGRICULTURAL WASTE STRAW

LIANG Wenjun; ZHANG Zhixue; LAN Tong; REN Sida

doi:10.13205/j.hjgc.202202026

Volume 40 Issue 2

Apr. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(2): 168-176

LIANG Wenjun, ZHANG Zhixue, LAN Tong, REN Sida. PREPARATION OF ROAD DUST SUPPRESSANT WITH AGRICULTURAL WASTE STRAW[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(2): 168-176. doi: 10.13205/j.hjgc.202202026

Citation:

LIANG Wenjun, ZHANG Zhixue, LAN Tong, REN Sida. PREPARATION OF ROAD DUST SUPPRESSANT WITH AGRICULTURAL WASTE STRAW[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(2): 168-176. doi: 10.13205/j.hjgc.202202026

LIANG Wenjun, ZHANG Zhixue, LAN Tong, REN Sida. PREPARATION OF ROAD DUST SUPPRESSANT WITH AGRICULTURAL WASTE STRAW[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(2): 168-176. doi: 10.13205/j.hjgc.202202026

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PREPARATION OF ROAD DUST SUPPRESSANT WITH AGRICULTURAL WASTE STRAW

doi: 10.13205/j.hjgc.202202026

Beijing Key Laboratory of Regional Air Composite Pollution Prevention and Control, Beijing University of Technology, Beijing 100124,China

Received Date: 2021-03-31
Available Online: 2022-04-02
Publish Date: 2022-04-02

Abstract

Abstract

An environment-friendly road dust suppressant was prepared by using corn straw as the main raw material, enzymatic hydrolysis of straw with cellulase and environmental-friendly additives. The moisture absorption, moisture retention and surface tension of the dust suppressor were tested and characterized. The response surface methodology was also used to optimize the formula of dust suppression agent and prepare the samples of dust suppression agent. The optimal mass ratio of xylanase, acid cellulase, cellulobiase and β-glucanase was 2∶2∶1∶1, in which the water absorption rate of dust suppression agent was used as the evaluation index. The optimal mass ratio of straw∶glycerol∶magnesium chloride∶α-enyl sulfonate∶polyacrylamide was 1∶4∶3∶0.05∶0.001 based on the physical and chemical properties and practical performance of dust depressant. The developed dust suppressant had good wettability and anti-evaporation performance while the dust suppression rate could reach 100% within 2 hours at the wind speed of 7.8 m/s.
- straw,
- cellulase hydrolysate,
- road dust suppressant,
- response surface method

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References(29)

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